Home / 143,713.41-215,476.25-68,831.16

Finding the Fourth Proportional to 143,713.41, 215,476.25 and 68,831.16

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Solution

The fourth proportional to 143,713.41, 215,476.25 and 68,831.16 is: 103,201.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,713.41 : 215,476.25 = 68,831.16 : x
  2. Step 2: Convert to fraction form
    143,713.41/215,476.25 = 68,831.16/x
  3. Step 3: Cross multiply
    143,713.41x = 215,476.25 × 68,831.16
  4. Step 4: Simplify right side
    143,713.41x = 14,831,479,895.79
  5. Step 5: Solve for x
    x = 14,831,479,895.79/143,713.41
  6. Step 6: Final answer
    x = 103,201.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.